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Ball Bearing Compatibility for Shimano Calcutta
Compatible with the following Shimano Calcutta models:
- CALCUTTA 24 SHALLOW EDITION | 30HG, 31HG
- CALCUTTA 23 MD | 300XG, 300XGLH, 301XGLH, 400XG, 400XGLH, 401XGLH
- CALCUTTA 23 BFS | HG Right, HG Left, XG Right, XG Left
- CALCUTTA 21 | 100, 101, 100HG, 101HG, 200, 201, 200HG, 201HG, 200XG, 201XG
- CALCUTTA 20 DC | 100, 101, 100HG, 101HG, 200, 201, 200HG, 201HG
- CALCUTTA 17 BFS | BFS Right, BFS Left
- CALCUTTA 14 | 100, 101, 200, 201, 100HG, 101HG, 200HG, 201HG, 300, 301
- CALCUTTA 00 | 50, 51, 100, 101, 200, 201, 300, 400, 401
Spool Bearing Differences – Core vs Edge vs Apex Compared
Spool Bearing Differences – Core vs Edge vs Apex Compared
Our spool bearings differ in material composition, ball quality, cage system, ABEC precision class, and optimal tuning for your casting weight. Each class is designed for a specific application. The decisive factor is not just the ABEC rating, but the entire construction and its tuning to your setup.
Apex – ABEC 9 with S30 Ceramic Balls and PEEK Ribbon Cage
Apex bearings are our uncompromising high-performance option. They consist of ABEC 9 precision-made stainless steel rings, equipped with S30 ceramic balls and a PEEK (Polyether Ether Ketone) ribbon cage.
S30 ceramic balls enable extremely low friction and very high speeds. The PEEK ribbon retainer is a high-performance cage that ensures stability, temperature resistance, and reliable ball guidance at very high speeds.
- ABEC 9 precision standard
- S30 ceramic balls for maximum rotational pleasure
- PEEK ribbon cage for stability at high speeds & minimal friction
- Very fast spool acceleration
Thanks to this design, the spool of your baitcasting reel starts very quickly and reaches extremely high speeds, especially in the lower casting weight range.
Sweet spot casting weight: 2 to 60 g
If you mostly fish well above this range, a slightly more robustly tuned design makes sense. In this case, switching to the Edge class is recommended.
Edge – ABEC 9 Hybrid Ceramic Bearings with S25 Balls
Edge bearings are also based on an ABEC 9 precision standard. They use S25 ceramic balls combined with precision-made steel rings and a Japanese ribbon retainer.
Compared to Apex, Edge is tuned to be a bit more versatile. The design offers high speed capability combined with more mechanical stability for a broader range of applications.
- ABEC 9 precision standard
- S25 ceramic balls for high speeds
- Japanese ribbon retainer for stable ball guidance
- Balanced performance tuning
Edge bearings are available in two variants:
- With Orange Seal: Additional protection against dirt and moisture
- Without Seal: Minimal resistance for maximum rotational pleasure
Sweet spot casting weight: 5 to 100 g
If your setup regularly exceeds this range significantly, the Core class is the technically more suitable choice.
Core – ABEC 5 Stainless Steel Bearings for High Load
Core bearings consist of ABEC 5 precision-made stainless steel bearings with a stable ball and cage construction. They are designed for durability, continuous use, and consistent performance.
ABEC 5 here does not mean lower quality but a more robust tuning compared to high-speed hybrid ceramic bearings.
- ABEC 5 precision standard
- Robust stainless steel construction
- High mechanical load capacity
- Consistent performance under load
Sweet spot casting weight: 8 g to over 200 g
The Casting Weight Decides
All our spool bearings are high-quality manufactured and designed for high speeds. The crucial difference lies in the tuning to your actual lure spectrum.
Those who mostly fish very light lures benefit from maximum startup dynamics. Those covering a broader spectrum should choose a more versatile tuning. Those who consistently cast heavy should rely on robust stability.
The best performance arises when bearing class and casting weight match.
Compatible Reels
Compatible with the following Shimano Calcutta models:
- CALCUTTA 24 SHALLOW EDITION | 30HG, 31HG
- CALCUTTA 23 MD | 300XG, 300XGLH, 301XGLH, 400XG, 400XGLH, 401XGLH
- CALCUTTA 23 BFS | HG Right, HG Left, XG Right, XG Left
- CALCUTTA 21 | 100, 101, 100HG, 101HG, 200, 201, 200HG, 201HG, 200XG, 201XG
- CALCUTTA 20 DC | 100, 101, 100HG, 101HG, 200, 201, 200HG, 201HG
- CALCUTTA 17 BFS | BFS Right, BFS Left
- CALCUTTA 14 | 100, 101, 200, 201, 100HG, 101HG, 200HG, 201HG, 300, 301
- CALCUTTA 00 | 50, 51, 100, 101, 200, 201, 300, 400, 401
RL-TNG CORE Spool Bearing Set for Shimano Calcutta
RL-TNG CORE Spool Bearing Set for Shimano Calcutta
The Calcutta Conquest is an investment in quality and is designed to remain so for many years. The CORE stainless steel bearing ensures that the bearings do not become a weak point: maximum durability, stable operation under load, consistent performance after many years of fishing.
Construction and Material
CORE bearings are based on an ABEC 5 precision standard with high-quality stainless steel balls, precision-manufactured stainless steel races, and a sturdy cage design. This construction is deliberately designed for mechanical durability and long-lasting performance, not for speed records, but for years of reliable operation under load.
- ABEC 5 precision standard
- High-quality stainless steel balls and stainless steel races
- Robust cage design for high load capacity
- Maximum durability for continuous use
Performance Characteristics
CORE spool bearings are not optimized for maximum speed in the ultra-lightweight range, but for controlled, stable rotation under load. Especially with powerful casts and heavier lures, the performance remains consistent and reliable, use after use, season after season.
Recommended Application Range
The optimal application range is a casting weight of 8 g to over 200 g. This makes CORE bearings ideal for heavy setups, larger lures, and consistently high loads.
Classification within the RL-TNG Bearing Classes
For maximum spool acceleration and highest speeds in the ultra-light BFS range, the APEX class with S30 ceramic balls and PEEK cage is the right choice, for 2 to 60 g.
For versatile all-round performance that balances speed and durability, the EDGE class with S25 hybrid ceramic balls and optional Orange Seal offers the best ratio of both, for 5 to 100 g.
CORE is the right choice when stability, load capacity, and reliable long-term performance are the priority.